1 播种期选择春季甜瓜大棚栽培淮河以南地区应尽可能把成熟期安排在梅雨季节到来之前,播种期以1月至3月上旬为宜;淮河以北地区由于冬春季光照充足,极早熟和早熟栽培播种期以头年11月下旬至翌年2月为宜;而且江淮地区进入9月以后,秋高气爽,日照充足,昼夜温差增大,空气干燥,特别适合厚瓜甜瓜的膨果和成 1 sowing period selection Spring melon greenhouse cultivation Huaihe area south should be arranged as far as possible before the arrival of the rainy season, sowing period from January to early March is appropriate; north of the Huaihe River in winter and spring due to adequate light, very early and Early maturing sowing period in the first year from late November to February the following year is appropriate; and Jianghuai region into September after autumn, abundant sunshine, adequate temperature difference between day and night, air-drying, especially for thick melon swelling and into